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HVAC Know It All Podcast: Daily Summaries Delivered
by Gary McCreadie
The HVAC Know It All Podcast, hosted by HVAC and Refrigeration tech Gary McCreadie, is an industry leading show that focuses on education within the HVAC and Refrigeration Trade - Such as HVAC Maintenance Tips.
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- Yesterday26 min
HVAC Mental Health: Imposter Syndrome in Men to Regain Confidence with Gerry Wagner Part 2
In Part 2 of this Mental Health series episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Gerry Wagner, President of Education, Services & Products Company LLC (ESPCO LLC). Gerry shares his experiences with depression, suicidal thoughts, long-term sobriety, and the challenges of maintaining mental wellness. He discusses the importance of support systems, therapy, spirituality, and setting boundaries with people who do not support personal growth and recovery. The episode highlights resilience, self-awareness, and the value of finding healthy tools to navigate life's struggles while helping others through openness and shared experiences. Gary and Gerry discuss mental health, addiction, recovery, and personal growth in the trades. Gerry speaks openly about his experiences with alcoholism, depression, suicidal thoughts, and the long journey of maintaining sobriety. They talk about the importance of support systems, therapy, spirituality, and setting boundaries with people who are not supportive of recovery. Gerry also shares how helping others, staying self-aware, and finding healthy coping tools have helped him manage life's challenges. The conversation highlights resilience, honesty, and the value of seeking help while continuing to grow as a person. Expect to Learn: Why suicidal thoughts are often connected to deep emotional pain and hopelessness. How sobriety, support groups, and professional help can play a role in recovery. Why finding the right coping tools is important for managing mental health challenges. How spirituality and personal beliefs can provide support during difficult times. Why setting boundaries and surrounding yourself with supportive people can aid personal growth. Episode Highlights: [00:00] - Intro to Gerry Wagner in Part 02 [02:27] - Is suicide a selfish act? [06:02] - Openly discussing sobriety as self-therapy [08:02] - First AA meeting: boss's shocking testimony [11:19] - Higher power without religion [13:45] - Imposter syndrome in men & the trades [18:13] - Called a drunk: owning it forever [20:09] - Cutting toxic family out for good [25:53] - Hope this helps one person look in the mirror This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse! Follow the Guest Gerry Wagner on: LinkedIn: https://www.linkedin.com/in/gerry-wagner-1b154228/ Education, Services & Products Company LLC (ESPCO LLC): https://www.linkedin.com/company/education-services-products-company-llc-espco-llc/ Instagram: https://www.instagram.com/gerrythehvactrainer/ Follow the Host: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: https://www.hvacknowitall.co
- 2 days ago20 min
How Slow Cash Flow for HVAC Owners is Killing Growth by Delayed Invoicing – Roland Ligtenberg
In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Roland Ligtenberg, Co-Founder and SVP Growth & Innovation at Housecall Pro to discuss why cash flow is one of the most important factors for HVAC and home service businesses, especially in today's repair-focused economy. The conversation explores how CRMs and field service management software help contractors invoice faster, collect payments quicker, improve customer retention, and streamline operations. They also discuss the shift from replacement-heavy business models toward repair and service work, emphasizing the importance of technical training, customer experience, maintenance memberships, and operational efficiency. Roland explains how successful contractors are adapting to a repair-driven market by improving customer experience, speeding up payment collection, implementing maintenance memberships, and leveraging technology without losing the personal touch that homeowners value. Expect to Learn: - Why fast invoicing directly impacts business cash flow - How CRMs help HVAC contractors collect COD payments faster - Why the industry is shifting from replacements to repairs - The importance of technical diagnostics over aggressive sales tactics - How maintenance memberships improve long-term customer retention - Why "happy calls" can generate more 5-star reviews and repeat business - How financing options increase estimate acceptance rates - The real impact of AI and private equity on the HVAC industry - Why local service businesses still hold a competitive advantage Timestamps: 00:00 - Introduction 00:52 - Importance of cash flow and invoicing quickly 01:46 - How Housecall Pro helps contractors collect COD payments onsite 04:39 - Cash flow vs profit margins in small business 05:47 - Shift toward repairs over replacements 11:04 - The value of technical training and diagnostics 12:01 - Marketing, maintenance plans, and customer touchpoints 12:27 - Why membership plans matter for long-term growth 13:02 - Refrigerant regulations and repair practices in Canada 14:36 - AI, private equity, and the future of HVAC businesses 19:19 - Rolan shares contact information and closing remarks Want to learn how top HVAC contractors are improving cash flow, streamlining operations, and using AI without losing the personal touch? Connect with Roland Ligtenberg and discover how modern field service businesses are scaling smarter with tools like Housecall Pro. 📞 Call Roland directly: (858) 215-1512 Follow our Guest Roland Ligtenberg: LinkedIn: https://www.linkedin.com/in/rolandal/ Instagram: https://www.instagram.com/rolandal/ Facebook: https://www.facebook.com/rolandaligtenberg/ Company Youtube: http://www.youtube.com/@HousecallPro Company LinkedIn: https://www.linkedin.com/company/housecallpro/ Company Website: https://www.housecallpro.com/ Company Instagram: https://www.instagram.com/housecallpro/ Company Facebook: https://www.facebook.com/housecallpro/ Follow Gary McCreadie: LinkedIn: htt
- 2 days ago27 min
HVAC Mental Health: Overcoming Addiction and Depression in the Trades - Gerry Wagner Part 1
In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues the Mental Health Series with Guest Gerry Wagner, President of Education, Services & Products Company LLC (ESPCO LLC). Gerry shares his personal journey through addiction, depression, and recovery, explaining how childhood trauma, low self-esteem, and learning challenges affected his mental health from an early age. He opens up about his struggles with alcohol and drugs, reaching a breaking point at age 30, and maintaining over 35 years of sobriety. Together, they discuss the impact of mental health in the trades, the importance of seeking help, and the ongoing challenge of managing depression while building a successful career and life. This episode continues the mental health series with a conversation about addiction, depression, and recovery in the trades. Gerry joins Gary to share how childhood trauma, low self-esteem, and learning challenges shaped his early life and led him toward alcohol and drug use at a young age. He explains how addiction affected his relationships and brought him to a breaking point at age 30, which ultimately led him to seek a different path. Gerry also speaks openly about living with depression, coping with suicidal thoughts, and maintaining more than 35 years of sobriety. The conversation highlights the importance of seeking help, building healthy coping skills, and having honest discussions about mental health in the trades. Expect to Learn: How addiction and depression can affect people in the trades. How childhood trauma and low self-esteem can shape mental health. Why sobriety and recovery require ongoing effort and support. How lack of sleep can make mental health struggles harder. Why seeking help and talking openly about mental health is important. Episode Highlights: [00:00] - Intro to Gerry Wagner in Part 1 [03:39] - Pushback: "Soft technicians" argument addressed [06:13] - Gerry's sobriety: March 21, 1991 & last bender [11:18] - Rock bottom: Patricia leaves [12:37] - Root causes: Dysfunctional family, learning disability [18:43] - Why Gerry avoids antidepressants (fear of losing training personality) [23:26] - Suicidal thoughts as first reaction & daily exhaustion This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at SupplyHouse! Follow the Guest Gerry Wagner on: LinkedIn: https://www.linkedin.com/in/gerry-wagner-1b154228/ Education, Services & Products Company LLC (ESPCO LLC): https://www.linkedin.com/company/education-services-products- company-llc-espco-llc/ Instagram: https://www.instagram.com/gerrythehvactrainer/ Follow the Host: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: <a hr
- 1 weeks ago24 min
How Missed Calls Are Killing HVAC Owners to Unlock Millions in Revenue with Roland Ligtenberg
In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Roland Ligtenberg, Co-Founder and SVP Growth & Innovation at Housecall Pro to discuss how home service businesses scale from "one-man truck" operations into professional, systemized companies. Roland shares the origin story behind Housecall Pro, the operational bottlenecks that keep HVAC businesses stuck between $1M-$2M in revenue, and how AI-powered tools are transforming customer communication, call handling, and back-office operations for contractors. Roland also explains how AI-powered tools are changing the game for small contractors by improving customer communication, handling inbound calls, and helping business owners reclaim their time. Over the past 13 years, Roland has helped thousands of contractors modernize their operations by replacing pen-and-paper systems with software that streamlines scheduling, dispatching, invoicing, customer communication, financing, and AI-powered automation. Roland shares firsthand insights from working with HVAC, plumbing, and electrical businesses at every stage of growth from moonlighting technicians to multi-truck operations scaling beyond seven figures. Expect to Learn: - Why the original "Uber for home services" model struggled in HVAC and trades - How contractors used spreadsheets, calendars, and pen-and-paper before FSM software - The operational bottlenecks that stop contractors from scaling past $1M-$2M - Why answering the phone is the first major scaling challenge - The role AI is playing in customer service and call booking - How AI-powered office tools can improve professionalism and customer experience - Why elite office managers remain essential even in an AI-driven future - The importance of systems, SOPs, and repeatable workflows - Why online reviews compound over time and become a major growth driver Timestamps: 00:00 – Introduction 01:01 – The original "Uber for home services" idea 02:50 – The evolution from pen-and-paper to digital systems 04:40 – Why many contractors still use paper systems in 2026 05:43 – How FSM software helps contractors look more professional 08:30 – Financing, customer experience, and growing a small business 09:50 – Why HVAC businesses get stuck between $1M–$2M revenue 14:26 – The importance of answering the phone quickly 15:20 – AI-powered phone answering and booking systems 20:17 – Why humans still matter in operational workflows 20:30 – Cash flow, invoicing speed, and getting paid faster 21:19 – The rise of the repair economy in HVAC Want to learn how top HVAC contractors are improving cash flow, streamlining operations, and using AI without losing the personal touch? Connect with Roland Ligtenberg and discover how modern field service businesses are scaling smarter with tools like Housecall Pro. 📞 Call Roland directly: (858) 215-1512 This Episode is Kindly Sponsored by: - PartsTown: https://www.partstown.com/hvac-parts - Podium: https://podium.com/knowitall Follow our Guest Roland Ligtenberg: LinkedIn Profile: https://www.linkedin.com/in/rolandal/ Instagram: https://www.instagram.com/rolandal/ Facebook: https://www.facebook.com/rolandaligtenberg/ Company YouTube: http://www.youtube.com/@HousecallPro Company LinkedIn: <a href= "https://www.linkedin.com/company/hous
- 2 weeks ago18 min
HVAC Zoning Mistakes for Contractors Destroying Systems with Bad Design - Daniel Carrillo Part 2
In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Daniel Carrillo, Technical Sales and Training Expert at Airzone Control, about ducted zoning systems for VRF and inverter HVAC equipment. They discuss how Airzone controls airflow using thermostats, sensors, and modulating dampers to improve comfort and efficiency in different zones of a home or building. Daniel explains how the system avoids high static pressure by adjusting fan speed and damper positions based on demand. The conversation also covers the advantages of ducted zoning over wall-mounted systems, common problems with older zoning methods, and how proper duct design helps improve HVAC performance and airflow control. Gary and Daniel Carrillo discuss how Airzone zoning systems work with VRF and inverter HVAC equipment to improve comfort and airflow control in homes and buildings. Daniel explains how thermostats, sensors, and modulating dampers help manage each zone without creating high static pressure in the duct system. The conversation covers how fan speed changes based on demand and why dampers stay open when there is no heating or cooling call. They also talk about the differences between ducted zoning and wall-mounted systems, common problems with older zoning methods, and how proper duct design helps improve HVAC efficiency, airflow balance, and system performance. Expect to Learn: How Airzone zoning systems control airflow in different rooms using thermostats and sensors. How modulating dampers and inverter fan motors help prevent high static pressure issues. How ducted zoning systems can improve comfort and efficiency compared to wall-mounted units. Why older zoning systems used bypass dampers and the problems they created for HVAC equipment. How proper duct design and airflow control help improve HVAC performance and system balance. Episode Highlights: [00:00] - Sponsor: Factory Direct Filters ad [00:42] - Intro to Daniel Carrillo in Part 02 [02:21] - How zoning works: thermostats vs. sensors explained [03:58] - Controlling zones via Blue Face thermostat or cloud app [05:56] - What happens when one zone is set too cold [07:28] - No demand = dampers open; fan stops unless constant mode on [10:18] - Ducted zoning vs. wall mounts: regional differences [13:03] - Old zoning problems (bypass, barometric relief) solved by ECM motors [16:49] - How to get free system design (blueprint, zone layout, heat load needed) This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse! Follow the Guest Daniel Carrillo on: LinkedIn: https://www.linkedin.com/in/daniel-carrillo-922262305/ Airzone Control - LinkedIn Profile: https://www.linkedin.com/company/airzonecontrol/ Airzone Control - Website: https://www.airzonecontrol.com/as/en/ Follow the Host on: LinkedIn: <a href= "https://www.linkedin.com/in/gary-mccreadie-38217a7
- 2 weeks ago20 min
HVAC Techs Change System Design for New Refrigerants and Zoning Rules - Daniel Carrillo Part 1
In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Daniel Carrillo, Technical Sales and Training Expert at Airzone Control, to talk about A2L refrigerants, VRF zoning, and how new mitigation standards are changing HVAC system design. They discuss the challenges of using A2L equipment in residential and commercial spaces, how zoning systems can help improve airflow and safety, and why proper training is important for contractors. The conversation also covers common installation issues, communication errors, wiring practices, and how ducted zoning systems can improve comfort, efficiency, and room-by-room temperature control. In this conversation, Daniel and Gary discuss how A2L refrigerants are changing HVAC system design and why new mitigation standards are important for safety and airflow control. Daniel explains how zoning systems can help manage refrigerant dilution, improve comfort, and support better efficiency in VRF and ducted applications. Daniel and Gary also cover common installation issues, communication errors, wiring practices, and the importance of proper training when working with advanced zoning equipment and A2L systems. Expect to Learn: How A2L refrigerants are changing HVAC equipment and installation standards. How mitigation standards help improve safety and refrigerant dilution in occupied spaces. How zoning systems can improve comfort, airflow control, and energy efficiency. How communication errors and wiring issues can affect VRF and zoning equipment. How proper training and support can help contractors work with advanced HVAC systems. Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] - Intro to Daniel Carrillo in Part 1 [03:00] - A2L is slightly flammable, brings new regulations and mitigation standards [06:26] - How A2L affects VRF zoning - ductwork helps comply vs. wall mounts [09:32] - Top tech support tips: same supplier, training, don't fear calling [11:24] - Most common field issue: communication errors from loose connections [15:03] - Advantages of ducted zoning: fine-tuned air, no oversizing, better humidity control [19:08] - Four-room example - each room has its own climate, unused rooms get no air This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse! Follow the Guest Daniel Carrillo on: LinkedIn: https://www.linkedin.com/in/daniel-carrillo-922262305/ Airzone Control - LinkedIn Profile: https://www.linkedin.com/company/airzonecontrol/ Airzone Control - Website: https://www.airzonecontrol.com/as/en/ Follow the Host on: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All Inc.: https://www.linkedin.com/company/h
- 3 weeks ago21 min
Your HVAC System Is Losing 40% of Airflow Because of Duct Leakage - Gord & Ian Part 2
In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversations with Gord Cooke, President at Building Knowledge Canada, and Ian Walker, Sales & Marketing Manager at Aeroseal, about duct sealing and building performance. They explain how Aeroseal works by sealing leaks at the source without coating the entire duct, clearing up common misconceptions. The discussion highlights how leaky duct systems can lose a large amount of airflow, affecting comfort, balance, and system efficiency in a home. Gord shares insights on why sealing ducts improves airflow control and helps deliver air where it is needed most. They also talk about return air design, common issues with panned returns, and why proper airflow measurement matters for HVAC performance. Gary, Ian, and Gord discuss how Aeroseal works to seal duct leaks using pressure and a targeted sealant that only sticks at gaps. They explain that the process does not coat the full duct system and instead seals leaks from the inside. The conversation covers how duct leakage can reduce airflow, comfort, and system balance in a home. They also talk about how sealing ducts can improve air delivery and make balancing systems more effective. Gord shares insights on return air design, explaining common issues with panned returns and why they often do not move much air. They finish by highlighting how proper sealing and airflow checks help improve overall HVAC performance and comfort. Expect to Learn: How Aeroseal seals duct leaks by targeting gaps without coating the full duct system. How duct leakage can reduce airflow, comfort, and system balance in a home. How sealing ducts can improve air delivery and make system balancing more effective. Why return air systems often move less air than expected, especially when not fully ducted. How proper sealing and airflow checks can improve overall HVAC performance and comfort. Episode Highlights: [00:00] - Sponsor: Factory Direct Filters ad [00:42] - Intro to Gord Cooke and Ian Walker in Part 02 [02:02] - Arrow Seal vs. Aero Barrier: Same tech, different application [02:49] - Myth busted: Sealant only plugs holes, doesn't coat duct walls [04:27] - Why seal ducts? Comfort, not just energy (30% typical leakage) [08:34] - How AeroSeal works: Pressurize, mist, seal in 20 – 30 min [09:59] - Cost estimate: 2,000 – 2,500 CAD for a 2,000 sq ft home [13:11] - Panned returns leak 100% – don't expect measurable flow [18:00] - Key difference: Stay home during AeroSeal, leave during AeroBarrier [19:57] - Target: 1.5 ACH50 for optimal building enclosure This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse! Follow the Guests Gord Cooke and Ian Walker on: LinkedIn - Gord Cooke: https://www.linkedin.com/in/gord-cooke-4b9b3433 LinkedIn - Ian Walker: <a href= "https://www.linkedin.com/in/ian-wa
- 3 weeks ago24 min
How Ventilation Mistakes in Tight Homes Lead to Energy Loss and Poor Air Quality - Gord & Ian Part 1
In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Gord Cooke, President at Building Knowledge Canada, and Ian Walker, Sales & Marketing Manager at Aeroseal, to talk about air sealing technology and how it improves building performance. They explain how AeroBarrier works to reduce air leakage and why airtight homes need proper mechanical ventilation. The conversation covers common concerns about sealing homes too tightly, the role of HVAC systems in fresh air control, and how ventilation systems like ERVs help maintain comfort. Gary, Gord, and Ian also share real job site examples, costs, and how better air sealing can improve energy efficiency and system sizing. In this conversation, Gord and Ian explain how AeroBarrier is used to seal air leaks in homes and improve building performance. They describe how the system uses pressure and a misted sealant to find and close gaps, while stressing the need for proper ventilation to maintain air quality. Gord, Ian, and Gary discuss common concerns about making homes too tight and explain why controlled ventilation is important. They also cover real job site examples, costs, and how reducing air leakage can improve comfort, energy use, and HVAC system sizing. Expect to Learn: How AeroBarrier works to seal air leaks using pressure and a misted sealant. How building science and HVAC systems work together in modern homes. How proper ventilation keeps air quality safe in airtight homes. How ERV systems and exhaust fans help control fresh air and moisture. How reducing air leakage can improve comfort, energy use, and system sizing. Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] - Intro to Gord Cooke and Ian Walker in Part 1 [02:20] - Introducing Aero Barrier technology and on-site demo [03:40] - Ian explains how Aero Barrier works (blower door, positive pressure, sealant mist) [05:17] - Debunking "sealing too tight" myth - build tight, ventilate right [09:32] - Summary: Tight homes are fine if mechanical ventilation is present [12:35] - Cost range = 0.80 – 1.50 per square foot [14:14] - Recommendation of ERV + source control for best ventilation [16:46] - Ventilation controls (CO₂, humidity) [19:37] - Real-world results: 14 ACH down to ~4 ACH, 55–60% leakage reduction This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse! Follow the Guests Gord Cooke and Ian Walker on: LinkedIn - Gord Cooke: https://www.linkedin.com/in/gord-cooke-4b9b3433 LinkedIn - Ian Walker: https://www.linkedin.com/in/ian-walker-930954101/ LinkedIn - Building Knowledge Canada: https://www.linkedin.com/company/building-knowledge-cana
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